JP2735143B2 - Die changing device for extrusion press - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a die exchanging apparatus for an extrusion press, and more particularly, to an automatic die exchanging operation for a press having a structure in which the extrusion press combines both direct extrusion and indirect extrusion, and to reduce the time required for the operation. And a die exchanging device for an extrusion press.

[0002]

2. Description of the Related Art As a conventional die exchanging device for a direct extrusion press, a die changer is arranged at a side of a press, and exchange is performed by moving a die cassette placed on a tray of the die changer toward the center of the extrusion press. It is known that this is done. This is configured such that a die slide for traversing the die cassette is provided on one side of the press and a die changer is arranged on the other side. The die slide has a hook engagement structure that can be attached and detached only in the direction parallel to the die cassette and the press center.The die slide is driven by the cylinder to move the common guide at the front of the platen, and the old die cassette is transferred to the die changer. At the same time, the exchanging operation is performed by hooking a new die cassette on the die changer and pulling it to the press center. The die changer has a slide tray that can be moved back and forth, and is provided with a mounting portion for the new die cassette and a receiving portion for the old die cassette. The position is to be changed.

[0003]

However, the above-mentioned conventional die changer is applied to die exchange for a direct extrusion press, and is intended for die exchange of the same size. When exchanging a press die or exchanging a press die having a structure that combines both direct extrusion and indirect extrusion, the exchanging operation becomes very complicated, and a quick exchanging operation cannot be performed. In particular, since the die for indirect extrusion has a die stem, it cannot be replaced by a conventional die changer.

The present invention focuses on the above-mentioned conventional problems, and in particular, provides an extruding press die exchanging apparatus having a structure capable of quickly exchanging a die for a press which combines both direct extrusion and indirect extrusion. With the goal.

[0005]

In order to achieve the above object, a die changing apparatus for an extrusion press according to the present invention is arranged at a side portion of an extrusion press and is capable of transferring an exchange die cassette to the press. An elevating tray that can be raised and lowered, a die changer main body having a slide tray attached to a fixed frame provided adjacent to the elevating tray and capable of mounting a plurality of die cassettes and capable of moving back and forth in an extrusion press direction, and the slide tray A die standby upper base in which a plurality of direct extrusion die cassettes and indirect extrusion die cassettes can be mounted in parallel on the side of the die; and a die between the die standby upper base and the slide base of the die changer body. A die cassette traversing drive means for transferring the cassette, and a die cassette for indirect extrusion, And it can be mounted die waiting lower base bets, constructed and provided with a die cassette traversing device constituting the transfer of die cassette between the elevating tray and the die stand lower base.

[0006]

When the direct die cassette is replaced with the indirect die cassette according to the above configuration, the indirect die cassette to be replaced is mounted on the die standby upper base in advance, and the die slide is pressed. Directly feeds the die cassette for extrusion to the side and transfers it to the slide tray. Then, the die slide is pulled in, the slide tray is moved to a position where the die cassette can be sent out by the die cassette traversing means, and the die cassette is directly transferred to the die standby upper base. The slide tray in which the empty space is formed is retracted, and then the die cassette for indirect extrusion is transferred from the standby base to the empty space of the slide tray. The transfer position of the indirect die cassette may be set to an empty space on the rear end side of the slide tray so that the die stem does not interfere with the transfer space of the direct extrusion die cassette on the slide tray. After the die slide is advanced from the press side, the slide tray is moved, thereby engaging the hook between the die slide and the indirect extrusion die cassette. It does. By such a method, it is possible to automate the exchange operation of the die cassette for indirect extrusion while effectively utilizing the die changer for direct extrusion, and the extrusion press has a structure in which both the direct extrusion and the indirect extrusion are used. In this case, the die exchange operation can be greatly reduced.

On the other hand, when the indirect die cassette is replaced with the direct die cassette, the direct die cassette to be replaced is mounted on the die standby upper base in advance, and the die cassette is indirectly moved from the press by the die slide. The extrusion die cassette is sent out to the side and transferred onto a slide tray. Then, the die slide is pulled in, the slide tray is moved to a position where the die cassette can be fed out by the die cassette traversing means, and the indirect die cassette is transferred to the die standby upper base. The slide tray in which the empty space is formed is moved backward, and then the extrusion die cassette is directly transferred from the standby base to the empty space of the slide tray. The transfer position of the direct die cassette may be set to an empty space on the rear end side of the slide tray so that the die stem does not interfere with the transfer space of the indirect extrusion die cassette on the slide tray. Then, after the die slide is advanced from the press side, the slide tray is moved, thereby engaging the hook between the die slide and the extrusion die cassette directly, and moving to the press center by the pull-in operation of the die slide to perform an exchange operation. It does. By such a method, it is possible to automate the exchange operation of the die cassette for direct extrusion while effectively utilizing the die changer for indirect extrusion, and the extrusion press has a structure in which both the direct extrusion and the indirect extrusion are performed. In this case, the die exchange operation can be greatly reduced.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a die changing apparatus for an extrusion press according to the present invention.

FIGS. 1 to 3 show a die changing apparatus according to an embodiment. As shown in these figures, the die exchanging apparatus includes a die changer main body 14 arranged on the side of the extrusion press 10, particularly on the end platen 12, a die standby upper base 16 further arranged on the side thereof, and a die stand. A traversing drive means 18 for transferring a die cassette between the changer body 14 and the die standby upper base 16; Tray 1
7, a die standby lower base 19 for mounting an indirect extrusion die cassette, and a die cassette traversing device 21 for transferring the die cassette between the elevating tray 17 and the die standby lower base 19. It has been.

First, the die changer body 14 has a slide tray 22 mounted on a fixed frame 20 so as to be reciprocally movable in parallel with the press center of the extrusion press 10. The slide tray 22 is set to have a length capable of mounting one die cassette for indirect extrusion described later, and is slid and guided by a linear guide 24 formed on the fixed frame 20 corresponding to both side edges thereof. I have. A drive mechanism for moving the slide tray 22 back and forth is provided in a U-shaped groove 26 of the fixed frame 20 formed on the lower surface of the slide tray 22. As shown in FIG. Rack teeth 28U and 28D are provided on the lower surface and the bottom surface of the fixed frame 20 facing the lower surface, respectively, and a pinion 30 that meshes with both rack teeth 28U and 28D at the same time is provided. A rod 34 of a drive cylinder 32 attached to the fixed frame 20 is connected to the pinion 30. The pinion 30 is rolled by the reciprocating drive of the rod 34, so that the upper slide tray 22 can reciprocate back and forth. I have.

As shown in FIGS. 1 and 3, the die standby upper base 16 provided in the die changer body 14 has a direct extrusion die cassette 36 (36A, 3A).
6B) is a rectangular flat base which can be mounted in parallel with two units and one die cassette for indirect extrusion 38B in parallel.
7 are installed so as to be flush with each other at the ascending limit position.

As shown in FIG. 2, the slide tray 22 of the die changer main body 14 is fixed to a chair-like mounting table 40 having a short back. The die cassette 36B for direct extrusion or the die cassette 38B for indirect extrusion is mounted on this. In this case, the slide tray 22 includes a direct extrusion die cassette 36A or an indirect extrusion die cassette 38A mounted on the elevating tray 17 at a time when the elevating tray 17 is to be described later and a lower limit. The direct extrusion die cassettes 36B or the indirect extrusion die cassettes 38B are arranged at intervals so that they can be mounted in tandem (see FIG. 2).

The direct extrusion die cassette 36 (3
6A, 36B), the indirect extrusion die cassette 38B can be moved in a transverse direction between the slide tray 22 and the die standby upper base 16, and the transverse guide protrusions 42 for this purpose.
Is provided, while the die cassette 36 (36) for direct extrusion is provided.
A, 36B), a die cassette 38 for indirect extrusion (38A,
38B), a transverse guide groove 44 is formed on the lower surface. Direct extrusion die cassette 36 (36A, 36B),
As shown in FIG. 5, the indirect extrusion die cassette 38 (38A, 38B) is formed as a rectangular block having a U-shaped mounting groove 46 for direct extrusion, and is used for indirect extrusion. Is formed as a rectangular block in which a space surrounding the die stem holder 50 and the pressure plate 52 attached to the base end of the die stem 48 is formed. The lower surface of each of the traverse guide grooves 4
4 is provided, which is mounted in a state of being fitted to the traverse guide ridge 42 of the installation table 40.

On the other hand, as shown in FIGS. 1 to 3, the elevating tray 17 is arranged in the column direction with the die changer main body 14 and on the side of the extrusion press 10. An elevating rod 17b is provided at the center of the guide 23 so that the elevating tray 17 can be moved up and down smoothly along the guide 23 disposed in the guide 23. In addition, the exchange die cassette is delivered to the extrusion press 10 at the time of ascent and descent, and the delivery of the indirect extrusion die cassette 38A particularly between the die standby lower bases 19 described later is performed at the time of descending.

As shown in FIG. 1 and FIG. 2, the die standby lower base 19 is disposed below the tip of the die standby upper base 16. A cylinder type die cassette traversing device 21 is mounted on the die standby lower base 19 on a die cassette mounting frame 21a.
Drives the indirect extrusion die cassette 38 </ b> A between the lifting tray 17 and the die standby lower base 19.

The direct extrusion die cassette 36 (36)
A, 36B), in order to move the indirect extrusion die cassette 38B traversely between the slide tray 22 and the die standby upper base 16, the traversing drive means 18 straddles the slide tray 22 and the die standby upper base 16. (See FIGS. 1 and 3). That is, a gate-shaped frame 54 that straddles the slide tray 22 and the die standby upper base 16 is installed, and a traversing carriage 58 is attached to the upper beam 56 of the gate-shaped frame 54 so as to run. A traveling drive cylinder 60 is attached to the upper beam 56, and is connected to one end of the traversing carriage 58 so that the carriage 58 is located between two positions immediately above the slide tray 22 and immediately above the die standby upper base 16. It reciprocates. The die cassette 36 for direct extrusion (36A, 36B), the die cassette 3 for indirect extrusion,
An engagement lever mechanism 62 for traversing 8B is provided. This can be understood from FIGS. 1 and 4,
A pair of shafts 64F, 64R are rotatably attached to the left and right side edges of the traversing carriage 58 along the traversing direction, and a pair of L-shaped engaging levers 66F, 66R are provided on the shafts 64F, 64R, respectively. I have. The engagement levers 66F, 66R can be swung downward by the rotation of the shafts 64F, 64R. In the swung state, the engaging levers 66F, 66R respectively hold both sides of the direct extrusion die cassette 36 (36A, 36B) and the indirect extrusion die cassette 38B. It can be sandwiched. In order to drive these engagement levers 66F and 66R to swing out, both rod cylinders 68 are attached to the center of the traversing carriage 58 so as to be orthogonal to both shafts 64F and 64R, and the cylinder rod and each shaft 64F,
A pinion rack mechanism 70 is formed at the intersection with the 64R,
The engagement levers 66F, 66R on the extension side of the cylinder rod are to be swung downward. Further, the engagement of the pinion rack is set such that when one of the engagement levers 66F, 66R is swung downward, the other is swung upward so that these are selectively swung. .

Here, a die cassette 36 for direct extrusion between the die changer body 14 and the extrusion press 10 is provided.
(36A, 36B), indirect extrusion die cassette 38 (3
As shown in FIG. 6, the exchange movement of 8A, 38B) is performed by a die slide device 72 disposed on the side opposite to the die changer body 14 with the extrusion press 10 interposed therebetween. It has a die slide 74 which can run on a common guide provided on the front portion of the end platen 12 and which is directly moved between the die changer body 14 and the die cassette 36 by a traverse drive cylinder 76.
(36A, 36B), indirect extrusion die cassette 38 (3
8A, 38B). The die slide 74 is a die cassette 36 for direct extrusion.
(36A, 36B), indirect extrusion die cassette 38 (3
8A, 38B) by hook engagement, so that a hook 78 is provided on the traversing front portion of the die slide 74, while the die cassette 36 (36A, 36) for direct extrusion.
B), die cassette 38 for indirect extrusion (38A, 38B)
A hook groove 80 engaging with the hook groove 80 is formed on the side.
The hook groove 80 is formed in a hook shape so that the hook groove 80 does not come off in the traversing movement direction by the die slide 74 and is disengaged in the direction along the press center, that is, when the slide tray 22 of the die changer main body 14 moves. Has become.

The extrusion press 10 equipped with such a die exchanging device has a structure that combines both direct extrusion and indirect extrusion. Therefore, as shown in FIGS. Thus, both the direct extrusion die cassette 36 (36A, 36B) and the indirect extrusion die cassette 38 (38A, 38B) are fixedly held. A first shearing device 84 for separating and cutting the discard from the die when the direct extrusion press is completed is provided above the end platen 12, and a second shearing device for similarly performing the discard separation and cutting when the indirect extrusion press is completed. 86 is attached to a container housing 88. As a result, it is possible to cope with an extruding operation for two-time use.

The die exchanging operation according to the above configuration will be described with reference to FIGS. First, in the state where the direct extrusion press work is performed, as shown in FIG. 9, the direct extrusion die cassette 36 (36 </ b> A, 36 </ b> B) is mounted on the end platen 12, and the container 90 is in contact with the die. The product is extruded through the end platen 12 by loading a billet (not shown) into the die and extruding the billet toward the die with an extrusion stem. When the extrusion is completed, the container 90 is separated from the end platen 12, and the first shearing device 84 attached to the end platen 12 is operated to separate and separate the die and the discard remaining in the container 90.

When the extrusion press 10 is changed to indirect extrusion, the original direct extrusion die cassette 36 (36A, 36A) is used.
B) and a die cassette 38 for indirect extrusion (38A, 38).
The arrangement state of B) is as shown in FIG. The currently used direct extrusion die cassette is designated as 36A (indicated by symbol A), and the second direct extrusion die cassette placed on the die changer body 14 is designated as 36B (indicated by symbol B). Extrusion die cassette 38 (38A,
38B) is mounted on the die standby upper base 16 or the die standby lower base 19, respectively. From this state, the extrusion die cassette 36A is directly removed from the press 10 by the die slide 74, sent out onto the elevating tray 17 that has risen to the ascending limit position, and once transferred to the mounting table 40 provided on the elevating tray 17 (FIG. (2)). The die cassette 36A for direct extrusion is transferred onto the slide tray 22 by the subsequent extension of the rod of the traverse drive cylinder 76, and the engaging lever mechanism 62 of the traverse drive means 18 is moved.
, The front engagement lever 66F is swung downward to sandwich both side surfaces of the die cassette 36 (36A, 36B) for direct extrusion (FIG. 3 (3)). At this time, the other engagement lever 6
6R will be swung up. Traversing trolley 58
Is moved to the die standby upper base 16 side by the traveling drive cylinder 60, and the direct extrusion die cassette 36 (36
A, 36B) are transferred to the die standby upper base 16 (FIG. 3C). Thereby, the mounting table 40 on the lifting tray 17
The transfer space for the indirect extrusion die cassette 38B is formed on the slide tray 22 at the same time as the transfer space for the indirect extrusion die cassette 38A.

Thereafter, the slide tray 22 is moved by the drive cylinder 32 to the retreat limit position, and
Are aligned with the rear mounting table 40 of the die standby upper base 16 so that the indirect extrusion die cassette 38B can be traversed. By operating both rod cylinders 68 of the traversing carriage 58 located above the die standby upper base 16, the engagement lever 66R of the indirect extrusion die cassette 38B is swung downward to be engaged. At this time, the other engagement lever 66F is disengaged from the indirect extrusion die cassette 38 (38A, 38B). Then, by moving the traversing carriage 58 toward the slide tray 22, the indirect extrusion die cassette 38 </ b> B is transferred to the rear mounting table 40 of the slide tray 22. In parallel with these operations, as shown in FIG. 7, the indirect extrusion die cassette 38A mounted on the die standby lower base 19 is in standby at the lower limit position by extending the rod of the die cassette traversing device 21. It is transferred onto the lifting tray 17.

Next, a case will be described in which the indirect extrusion die cassette 38A loaded on the elevating tray 17 is mounted on the press center of the extrusion press 10. When the lifting tray 17 is raised to the lifting limit position (FIG. 5A), the hook 79 on the side of the indirect extrusion die cassette 38A and the hook 81 on the side of the die cassette traversing device 21 are released, and the lifting tray 1 is lifted.
7 of the die slide 74 waiting at the ascending position of 7
8 is switched so that the hook 78 engages with the hook groove 80 of the indirect extrusion die cassette 38A by retreating the slide tray 22, so that the die slide 74 is pulled in to move the indirect extrusion die cassette 38A to the press center. It can be moved and replaced (FIG. 6A).

Next, a case where the indirect extrusion die cassette 38B is mounted on the press center of the extrusion press 10 will be described. By moving the slide tray 22 to the forward limit position with the lifting tray 17 lowered to the lower limit position (FIG. 5B), the hook 78 engages with the hook groove 80 of the indirect extrusion die cassette 38B. The indirect extrusion die cassette 38B can be moved to the press center and replaced by pulling and moving the die slide 74 (FIG. 6B).

Next, when the extrusion press 10 is changed for direct extrusion, the original direct extrusion die cassette 36 (36) is used.
A, 36B) and an indirect extrusion die cassette 38 (38).
A, 38B) is shown in FIG. 12 (1A) or FIG.
(1B). 12 (1A) as a representative, the currently used indirect extrusion die cassette 38A and the second indirect extrusion die cassette 38B placed on the die changer main body 14 are designated as 38B, and the direct replacement die cassette is used. It is assumed that the extrusion die cassette 36 (36A, 36B) is mounted on the die standby upper base 16. From this state, the indirect extrusion die cassette 38A is removed from the extrusion press 10 by the die slide 74 and is transferred onto the elevating tray 17 at the ascending limit position, and then the elevating tray 17 is lowered to the ascending limit position (FIG. 2A). ). Thereafter, the slide tray 22 is moved to the retreat limit position by the drive cylinder 32 (FIG. 3 (3)), and the rear mounting table 40 is aligned with the rear mounting table 40 of the die standby upper base 16 (FIG. 3 (3)). The indirect extrusion die cassette 38B can be traversed. By operating both rod cylinders 68 of the traversing carriage 58 located at the upper part of the die changer main body 14, the engagement lever 66R of the die cassette 38B for indirect extrusion is swung downward to be engaged.

At this time, the other engagement lever 66F is disengaged from the indirect extrusion die cassette 38 (38A, 38B).
Then, by moving the traversing carriage 58 to the die standby upper base 16 side, the indirect extrusion die cassette 38B is transferred to the rear mounting table 40 of the die standby upper base 16. At this time, the elevating tray 17 is raised to the upper limit position (FIG. 4D). Thus, a transfer space for the extrusion die cassette 36 </ b> A is formed directly on the mounting table 40 on the lifting tray 17.

After that, the slide tray 22 is moved by the drive cylinder 32 to the forward limit position adjacent to the lift tray 17 at the lift limit position, and the middle mounting table 40 of the die standby upper base 16 is moved to the front mounting table 40 of the slide tray 22. In addition, the front mounting table 40 of the die standby upper base 16 and the mounting table 40 of the elevating tray 17 are aligned to enable the direct movement of the extrusion die cassette 36 (36A, 36B).

By operating both rod cylinders 68 of the traversing carriage 58 located above the die standby upper base 16, the engagement lever 66F of the extrusion die cassette 36 (36A, 36B) is directly swung downward to engage. Let it. At this time, the other engagement lever 66R is disengaged from the indirect extrusion die cassette 38B. Then, the trolley 58 is transferred to the lifting tray 17 and the slide tray 22. Then
After lowering the elevating tray 17 and moving the die slide 74 to a position where the die slide 74 can be connected to the die cassette, the elevating tray 17 is raised to the ascending limit position. At this time, switching is performed so that the hook 78 of the die slide 74 and the hook groove 80 of the direct extrusion die cassette 36A are engaged with each other (FIG. 5 (5)). The cassette 36A can be moved to the press center and replaced (FIG. 6 (6)).

The indirect extrusion die cassette 38 (38A, 3
8B) is mounted on the platen 12 as shown in FIG. 10. A container (not shown) is driven toward the die stem 48 in a state in which the billet is loaded in advance, and is provided between the container and the tip of the stem. Extrusion is performed using a die. After the completion of the extrusion, discard cutting is performed by the second shear device 86 attached to the container housing 88 shown in FIG. 9, and the cycle is completed.

According to the extrusion press die exchanging apparatus having such a configuration, when the press is capable of performing both the direct extrusion and the indirect extrusion, the die cassette can be directly or indirectly extruded. 36B), 38
The work of replacing (38A, 38B) is performed very easily, and the replacement workability can be greatly improved. Each die cassette 36 (36A, 36A) for not only direct extrusion but also indirect extrusion is used while effectively utilizing the hook engagement mechanism by the die slide 74 for drawing into the extrusion press side.
B), 38 (38A, 38B) can be automatically replaced, and the direct extrusion die cassette 36 (36A, 36B) can be used.
B), die cassette 38 for indirect extrusion (38A, 38B)
This allows for quick replacement of

In the above embodiment, the exchange of the direct extrusion die cassette 36 (36A, 36B) and the indirect extrusion die cassette 38 (38A, 38B) has been described. Needless to say, it can be applied to work.

[0031]

As described above, according to the present invention, an elevating tray which is arranged on the side of an extrusion press and which is capable of transferring an exchange die cassette to the press, and a plurality of elevating trays adjacent to the elevating tray are provided. A die changer main body in which a slide tray provided to be able to mount a die cassette and move back and forth in the extrusion press direction is attached to a fixed frame, and a plurality of die cassettes for direct extrusion and indirect extrusion adjacent to the slide tray. A die standby upper base capable of simultaneously mounting the die cassettes in tandem, die cassette traversing drive means for transferring the die cassette between the die standby upper base and a slide base of the die changer body, and the elevating tray Die standby lower base on which the die cassette for indirect extrusion can be mounted, and the lifting tray By providing a die cassette traversing device that transfers the die cassette to and from the standby lower base, the excellent effect that the die exchange of the press that combines direct extrusion and indirect extrusion can be performed quickly and automatically. Is obtained. In particular, in the case of die exchange for indirect extrusion,
Since the die exchange is performed by the elevating method, there is no need for standby installation space at the time of die exchange, and it is possible to lean on the extrusion press machine, making maintenance and inspection work such as direct die exchange work and machine centering easy. .

[Brief description of the drawings]

FIG. 1 is a front view of a die exchanging apparatus according to an embodiment.

FIG. 2 is a side sectional view of the same device as viewed from BB in FIG.

FIG. 3 is a plan view of the same device.

FIG. 4 is a sectional view of a main part of a traversing drive unit of the apparatus.

FIG. 5 is a front view and a sectional view of a direct extrusion die cassette and an indirect extrusion die cassette.

FIG. 6 is an explanatory diagram of a die cassette arrangement in an exchange state by a die slide.

FIG. 7 is an explanatory diagram showing a moving state of the indirect extrusion die cassette in the die standby lower base as viewed from A to A in FIG. 1;

FIG. 8A is a front view showing an engagement state between a die slide and a die cassette for indirect extrusion, and FIG. 8B is a top view of FIG.

FIG. 9 is a sectional view of a direct extrusion die cassette in a state where a platen is mounted.

FIG. 10 is a cross-sectional view of the indirect extrusion die cassette in a state where a platen is mounted.

FIG. 11 is an explanatory diagram of a die cassette exchanging operation by the apparatus of the embodiment.

FIG. 12 is an explanatory diagram of another die cassette replacement operation by the embodiment apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Extrusion press 12 End platen 14 Die changer main body 16 Die standby upper base 17 Elevating tray 18 Traverse driving means 19 Die standby lower base 20 Fixed frame 21 Die cassette traversing device 21a Die cassette mounting frame 22 Slide tray 24 Linear guide 26 U-shaped groove 28U, 28D Rack teeth 30 Pinion 32 Drive cylinder 34 Rod 36 (36A, 36B) Die cassette for direct extrusion 38 (38A, 38B) Die cassette for indirect extrusion 40 Installation table 42 Traverse guide ridge 44 Traverse guide groove 46 Mounting groove 48 Die stem 50 Die stem holder 52 Pressure plate 54 Gate frame 56 Upper beam 58 Traversing car 60 Cylinder for running drive 62 Engagement lever mechanism 64F, 64R Shaft 66F, 66R Engagement lever 68 Double rod cylinder 70 Pinion rack mechanism 72 Die slide device 74 Die slide 76 Traverse drive cylinder 78, 79, 81 Hook 80 Hook groove 82 Die cassette holder 84 First shear device 86 Second shear device 88 Container housing 90 Container

Claims (1)

(57) [Claims] 1. An ascending / descending elevating tray arranged on a side portion of an extrusion press and capable of transferring an exchange die cassette to the press, and a plurality of die cassettes adjacent to the elevating tray can be mounted so that the extruding press direction can be set. A die changer main body having a movable slide tray attached to a fixed frame, and a plurality of direct extrusion die cassettes and indirect extrusion die cassettes mounted side by side on the slide tray at the same time. A possible die standby upper base, a die cassette traversing drive means for transferring a die cassette between the die standby upper base and the slide base of the die changer body, and an indirect A die standby lower base on which an extrusion die cassette can be mounted, and a die between the elevating tray and the die standby lower base. A die exchanging device for an extrusion press, comprising a die cassette traversing device for transferring a cassette.